gem: Fix get_installed_versions: correctly parse "default" version. (#783)

* Fix get_installed_versions: correctly parse "default" version.

gem query output of

    bundler (default: 2.1.4, 1.17.2)

Gets parsed as:

    ['default:', '1.17.2']

Fix this by skipping "default: " if present in the list of versions - by adding
it as an optional part of the regex, grouped as a non-capturing group to keep
the index of existing group.

This now correctly parses the above input as

    ['2.1.4:', '1.17.2']

Fixes #782

* Fix gem get_installed_versions (cont): add changelog fragment

* Update changelogs/fragments/783-fix-gem-installed-versions.yaml as per suggestion

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: Felix Fontein <felix@fontein.de>
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Vlad Mencl 2020-09-03 17:47:34 +12:00 committed by GitHub
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bugfixes:
- "gem - fix get_installed_versions: correctly parse ``default`` version (https://github.com/ansible-collections/community.general/pull/783)."